| // Copyright 2021 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| package main | |
| /* | |
| #include <stdlib.h> | |
| #include <stdio.h> | |
| int *p; | |
| int* test() { | |
| p = (int *)malloc(2 * sizeof(int)); | |
| free(p); | |
| return p; | |
| } | |
| */ | |
| import "C" | |
| import "fmt" | |
| func main() { | |
| // C passes Go an invalid pointer. | |
| a := C.test() | |
| // Use after free | |
| *a = 2 // BOOM | |
| // We shouldn't get here; asan should stop us first. | |
| fmt.Println(*a) | |
| } |